Search results page hangs

I've noticed errors in the Chrome console before now about files not found during the loading process, but it's not often that something impacts upon performance or usability. Here though is an example of something that causes a page to fail to complete loading : the wheel in the tab that shows progress in displaying the web page just keeps on spinning and has been doing that for over five minutes.

The Chrome console shows two things : a javascript resource not found on the server which leads to a variable not being set properly; and a Base64-encoded request to pull in a .png image from cache which is stuck, with a status of "Pending". I cleared the cache and reloaded, but still get the same result. This needs to be investigated.

Re: Search results page hangs

Keeping an open mind about this anomalous behaviour. Currently investigating whether the Chrome "HTTPS Everywhere" extension is to blame for the "Pending" entries in the Network list that I see here and elsewhere.